DSView is a GUI program for supporting various instruments from DreamSourceLab, including logic analyzers, oscilloscopes, etc. DSView is based on the sigrok project.
The sigrok project aims at creating a portable, cross-platform, Free/Libre/Open-Source signal analysis software suite that supports various device types (such as logic analyzers, oscilloscopes, multimeters, and more).
The DSView software is in a usable state and has official tarball releases. However, it is still a work in progress. Some basic functionality is available and working, but other things are always on the TODO list.
DSView software is licensed under the terms of the GNU General Public License (GPL), version 3 or later.
While some individual source code files are licensed under the GPLv2+, and some files are licensed under the GPLv3+, this doesn't change the fact that the program as a whole is licensed under the terms of the GPLv3+ (e.g. also due to the fact that it links against GPLv3+ libraries).
Please see the individual source files for the full list of copyright holders.